The original algorithms of Chorus Lap Timer are very simple and effective. However, in my opinion, they are not fair for everybody. Close Proximity ensures that the measurement is taken fairly.
Also not much of configuration is needed (channel / band only).
And the iOS app has more functionalities, which were tested in the field.
This hex file can be used to alter the Chorus Lap Timer project.
Just upload this hex file into your assembled lap timer.
This project is NOT compatible with the original Chorus Lap Timer Android app. New application on iOS (Close Proximity) will be available soon through Apple's Appstore.
There is a beta iOS app version available.
Unfortunately, the Android compatible solution is not available yet.
To communicate with an iOS device, a BLE device is needed. We use HM-10 devices for our tests.
If you would like to participate in beta testing, let me know :)
If you want to have your Chorus Lap Timer Box printed here is an idea